Perhaps you should try some spelling variations:
bulgariae » bulgarian, bulgarie, bulgarians, vulgariae, bulgeriae, bulgarieiae
bulgaricae » bulgarica, bulgarische, bulgarian, vulgaricae, bulgericae, bulgarieicae
bulgaria » vulgaria, bulgeria, bulgarieia
bulgar » vulgar, bulger, bulgarie
bulgare » vulgare, bulgere, bulgariee, bulgarie, bulgarien

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((bulgariae OR bulgaricae) OR bulgaria) OR (bulgar OR bulgare)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgaricae) or bulgaria) or (bulgar or bulgare))*.